Dr. Gymbro
Fitness General Nutrition Recovery Science & Research Trending: supplements sports nutrition creatine pre workout recovery
A wide, editorial-style flat lay photographed from above on a pale warm-gray stone countertop in soft morning window light. On the left, a small matte white ceramic bowl holds fine white arginine powder, with a wooden scoop resting beside it. At the center, two halved oranges and one whole lemon in saturated citrus tones, with a few glossy droplets of water on the cut surfaces, to suggest vitamin C. On the right, three slim amber glass capsule bottles with minimal cream labels and no legible text stand in a loose row, with a few white capsules spilling out. A single chrome dumbbell handle enters the frame from the upper right corner, partly cropped, its cool metallic sheen contrasting with the warm fruit. A sprig of green rosemary and a folded linen napkin in oatmeal beige add texture. Long soft shadows fall to the left. The palette is warm cream, sunny orange, soft yellow, and muted sage, with a few crisp accents of steel gray. The composition is airy and uncluttered, with generous negative space in the upper left for a title overlay. It has a shallow depth of field, a crisp foreground, and a faintly blurred background. The look is clean, contemporary, and wellness-magazine, like a premium health and fitness journal cover, with natural grain, high-end product photography quality, and a calm, fresh, trustworthy mood.
Science & Research

3 g L‑Arginin + 500 mg Vitamin C: Testosteron Nambah 26 % ing Pengangkat Beban

Dr. Gymbro · · 4 min read
#testosterone #supplements #bodybuilding #nitric oxide #arginine #vitamin c #vo2max

3 g L‑Arginin + 500 mg Vitamin C: Testosteron Nambah 26 % ing Pengangkat Beban

Ringkesan: Arginin wis suwe dikenal minangka booster nitric oxide, nanging percobaan acak anyar nambahaké unsur anyar: gabungan karo Vitamin C. Ing 50 bodybuilder lanang, 3 g L‑arginin (dipérang dadi telu dosis) lan 500 mg Vitamin C sajrone 45 dina nambahaké tingkat testosteron lan VO2max kanthi signifikan dibandhingaké placebo, lan bobot lemak awak mudhun. Hormon pertumbuhan, kortisol, lan keseimbangan nitrogen ora nuduhaké prabédan sing berarti antarane klompok. Kombinasi iki murah lan patut diwawas, nanging asalé saka siji studi cilik, lan testosteron sing luwih dhuwur ora otomatis ateges otot luwih akeh.

Arginin nduwèni reputasi ala ing kalangan gym. Sajrone pirang‑pirang taun, suplemén iki dipromosikaké minangka booster nitric oxide kanggo ngasilaké pump sing luwih gedhé lan performa luwih apik, nanging akèh studi kontrol ing atlet terlatih ora nemokake efek sing jelas. Sawijining percobaan acak anyar maringi asam amino iki sentuhan anyar: digabung karo dosis murah Vitamin C lan ditrapaké ing program latihan sing terstruktur. Ing 50 bodybuilder lanang, kombinasi iki kabukten nyambung karo peningkatan testosteron lan VO2max.

Hasilé menarik, nanging isih saka siji studi cilik. Ing ngisor iki apa sing ditemokaké, apa sing ora, lan pira bobot sing kudu diwènèhi marang data iki.

Stak lan Dosisé

Percobaan iki, déning Athar lan kancané, diterbitaké ing 2026 ing Journal of Diabetes and Metabolic Disorders. Iki percobaan acak, double‑blind, lan nganggo kontrol placebo. Limang puluh bodybuilder lanang (rata‑rata umur 24 taun) dipérang dadi loro grup, masing‑masing 25 wong.

  • Grup intervensi: 3 000 mg L‑arginin saben dina, dipérang dadi telu dosis 1 000 mg, plus 500 mg Vitamin C saben dina.
  • Grup kontrol: Nampa placebo sing padha.

Kabèh peserta nindakké program latihan standar sing kalebu latihan beban lan sesi aerobik sajrone 45 dina. Cathetan studi nuduhaké sesi latihan beban disusul karo 20 menit kardio, telu kali seminggu.

Loro bahan iki regane murah, gampang ditemokaké, lan gampang diwènèhi dosis.

Hasilé

Dibandhingaké karo placebo, grup suplemén nuduhaké perbaikan signifikan ing loro ukuran utama:

  • VO2max mundhak signifikan (p < 0,001). Cathetan studi nyathet kenaikan kira‑kira 10 %.
  • Testosteron serum mundhak signifikan (p < 0,001). Cathetan studi nyathet kenaikan kira‑kira 26 %.

Grup suplemén uga nuduhaké penurunan signifikan ing bobot awak (p < 0,001), BMI (p = 0,004), lan persentase lemak awak (p < 0,001). Abstrak ora nyantumaké persentase perubahan sacara rinci, mula angka 10 % lan 26 % asalé saka interpretasi penulis. Priksa teks lengkap sadurunge ngutip angka iki minangka nilai pasti.

Penurunan bobot iki penting dicathet. Bodybuilder sing ngoyak ukuran ora mesthi kepengin bobot awak mudhun. Abstrak nglaporaké mudhune massa lemak lan bobot awak, nanging ora nyebutake massa otot, dadi ora cetha apa otot nambah, tetap, utawa malah ilang.

Napa Vitamin C Bisa Penting

Alasane ana gandhengané karo nitric oxide. Arginin iku prekursor nitric oxide, molekul sinyal sing ngatur tonus pembuluh lan aliran getih. Nitric oxide gampang rusak lan netralisir dening radikal bebas.

Hipotesis sing diusulaké yaiku Vitamin C, minangka anti‑oksidan, bakal nglindhungi nitric oxide saka kerusakan kuwi, saéngga L‑arginin bisa kerja luwih efektif dadi donor NO. Mekanisme iki bisa nerangaké kenapa gabungan iki kerja ing kéné, nalika arginin dewe asring ora ngasilaké apa‑apa. Mekanisme iki masuk akal, nanging durung dibuktikaké déning percobaan iki. Studi iki ora nyoba grup arginin single, mula ora bisa dipesthekaké apa Vitamin C pancen dibutuhaké.

Apa Sing Ora Owah

Sawetara marker tetep stabil, lan iki penting kanggo interpretasi:

  • Growth hormone ora nuduhaké beda signifikan antarane grup. Arginin asring dipasarkan minangka sekretagog GH, nanging efek iki ora katon ing kéné.
  • Kortisol uga ora beda signifikan, mulané ora ana owah‑owahan hormon katabolik sing cetha.
  • Keseimbangan nitrogen: ureum nitrogen urin turun signifikan, nanging perbedaan keseimbangan nitrogen sakabèhé ora signifikan antarane grup sawise nyetel faktor gangguan. Studi iki ora nuduhaké perbaikan terukur ing ekonomi protein.

Peneliti uga ngukur glukosa lan profil lipid, nanging asilé ora kacantumaké ing abstrak.

Cathetan Waspada

Anggep iki minangka petunjuk sing ngajanjèkaké, dudu keputusan final.

  1. Siji studi. Iki siji studi saka Iran, durung ana replikasi mandiri.
  2. Cilik lan cekak. Limang puluh pria enom sajrone 45 dina ora cukup kanggo nyimpulake efek jangka panjang, populasi liya, wanita, utawa atlit elit.
  3. Hormone ora padha karo hipertrofi. Testosteron sing luwih dhuwur ora otomatis ateges otot luwih akeh. Abstrak ora nyebutake peningkatan kekuatan utawa massa otot, lan penurunan bobot awak nuduhaké arah sing berlawanan kanggo sing lagi nglakuaké bulk.
  4. Ora ana grup isolasi Vitamin C. Tanpa grup arginin‑single utawa Vitamin C‑single, ora bisa dipastèkaké apa kombinasi iki luwih apik tinimbang salah siji komponen.
  5. Latihan terstandardisasi. Efek iki diamati bareng karo program latihan terstruktur, mula ora bisa dipisahaké saka kontribusi latihan.

Takeaway Praktis

Yen sampeyan kepengin nyoba, protokolé prasaja:

  1. Dosis: 1 000 mg L‑arginin telu kali sedina (total 3 g) plus 500 mg Vitamin C saben dina.
  2. Latihan: Gabungake karo latihan beban lan kardio sing konsisten, kaya sing ditindakake ing studi.

Kombinasi iki paling cocok kanggo lifter rekreasional sing uga peduli karo kebugaran kardiovaskular, amarga VO2max lan persentase lemak awak mudhun. Uga cocok kanggo wong sing lagi cutting lan pengin njaga kualitas latihan. Ora cocok kanggo sing pengin bobot awak munggah.

Sapa wae sing duwe kondisi medis utawa ngombe obat, utamane sing ngatur tekanan darah utawa gula darah, kudu konsultasi dhokter dhisik, amarga arginin mengaruhi fungsi vaskular.

Biayane murah, mula nyoba dewe ora ngentekaké akeh. Nanging aja ngarep‑arep iki bakal nggentèkaké latihan, asupan protein, lan turu sing cukup. Cathet data pribadi lan gunakaké informasi iki minangka salah siji saka pirang‑pirang faktor kanggo ngoptimalaké program latihan.

Sumber

Athar et al. The combined effect of L‑arginine and Vitamin C supplementation on nitrogen balance, body composition, maximal oxygen uptake, and anabolic‑catabolic hormones in male bodybuilders: A randomized double‑blind clinical trial. Journal of Diabetes and Metabolic Disorders, 2026. DOI: 10.1007/s40200-026-01987-4 | PubMed

Original study

Read the original research on pubmed.ncbi.nlm.nih.gov →

This article summarizes published research for general information. It is not medical advice.

Share XFacebookLinkedInRedditWhatsApp
DG

Written by

Dr. Gymbro

Dr. Gymbro writes for Dr. Gymbro: science-backed fitness, nutrition & performance.

Related Articles

A landscape editorial still life on a soft, warm oat-colored linen surface, lit by diffused natural window light from the left. In the center sits a shallow matte ceramic bowl in muted sage green holding a small mound of fine white arginine powder. Beside it rests a wooden scoop dusted with powder. To the left, a loose arrangement of dried Astragalus root slices, pale golden and delicate, fans out in a graceful curve. To the right, a few whole Panax notoginseng roots, knobbly and earthy brown, sit next to a small pile of finely ground tan powder on a folded cream paper. A single sprig of fresh green leaf adds a gentle accent in the background. In the foreground, a minimalist glass beaker with clear water and a thin linen-wrapped glass dropper sit slightly out of focus. Behind the objects, a softly blurred backdrop in pale blush and sand tones carries a faint, abstract pattern of soft circular shapes, like ripples or molecular dots drawn in subtle terracotta ink. A thin hand-drawn line graph in dusty coral rises gently across the upper right of the background, as if sketched on textured paper, with no readable text. The composition uses generous negative space on the upper left, which leaves room for a headline overlay. The palette is earthy and calm: sage, cream, terracotta, honey gold, and soft blush. The shallow depth of field gives creamy bokeh. Gentle shadows fall to the right. The overall feel is clean and contemporary, like a wellness and science journal cover, with subtle film grain, high-end editorial photography, and tactile natural textures.
nutrition

Suplement sing Nambah Penyerapan Arginine nganti 17 % ing Studi Cilik

BY DR. GYMBRO ·

Studi crossover taun 2023 nuduhaké yèn kombinasi 5 g arginine lan saponin saka Astragalus lan Panax notoginseng ningkataké penyerapan arginine nganti 17,3 % lan ngowahi rasio arginine‑ADMA nganti 167,1 %. Nanging ukuran sampel cilik, enam peserta dibuwang, lan ora ana pangukuran kinerja latihan. Ing ngisor iki apa sing diketokaké data, apa sing ora, lan sapa sing kudu mikir kaping pindho sadurunge nambahake suplement iki.
A wide, editorial-style flat lay photographed from above on a pale warm-gray linen surface in soft natural window light. At the center, a small open amber glass jar tips gently onto its side, spilling a few cream-colored capsules across the fabric. Next to the jar sits a loose arrangement of fresh mushrooms: a cluster of golden-tan reishi with glossy, lacquered caps, a few slender white enoki stems, a halved shiitake showing its pale gills, and a curl of turkey tail with concentric bands of rust, cream, and charcoal. A small wooden scoop holds a pile of fine beige mushroom powder. On the left third of the frame, a matte black sports watch with a minimal face lies beside a folded sage-green running shirt and a pair of lightweight off-white running shoes, hinting at athletic training without showing a person. A slim white notebook with a single pencil rests nearby, open to a blank page with a faint hand-drawn line graph trending upward, in thin graphite strokes. On the right side, a pair of clear glass beakers and a single small petri dish with a soft amber-tinted liquid add a subtle laboratory note, kept calm and organic. A single sprig of dried herbs and a few scattered oat-colored grains add texture. The palette is earthy and refined: oatmeal, soft sage, terracotta, warm amber, and charcoal accents against the muted neutral background. Shadows are soft and diffused, with a gentle highlight on the glass and the glossy reishi cap. The composition leaves generous negative space in the upper right for a headline overlay. Shallow depth of field blurs the edges slightly, while the central mushrooms and capsules stay crisp. The overall feel is modern, clean, and trendy, like a wellness and science magazine cover, with tactile natural textures, minimal styling, and a quiet sense of curiosity and skepticism.
science research

Kapsul Jamur Nambah VO₂max 14,8 %—Nanging Ana Sing Gedhe

BY DR. GYMBRO ·

Kapsul jamur, 40 dina, lan kenaikan VO₂max nganti 14,8 % krasa kaya janji sing kebak lèngkap. Ing artikel anyar ing *Antioxidants*, 50 atlet enom sing ngombe 320 mg ekstrak jamur multi‑beta‑glukan saben dina ngasilake VO₂max mundhak saka 46,26 dadi 53,12 mL/kg/menit. Nanging ora ana grup placebo, randomisasi, lan blinding, lan para atlet tetep nindakake latihan sakwise. Eksperimen sel ing jantung tikus menehi petunjuk babagan hipoksia, nanging sing dites mung senyawa tunggal, dudu kapsul lengkap. Ing ngisor iki ringkesan temuan, apa sing ora bisa diparingi kawruh, lan sapa sing kudu mikir kaping pindho sadurunge nyoba.
A wide, editorial-style photograph of a lone cyclist's legs and torso mid-sprint on a stationary indoor bike in a bright, minimalist performance studio. The scene is shot from a low three-quarter angle with shallow depth of field. The cyclist wears matte charcoal shorts and a fitted sage-green top, with a subtle sheen of sweat catching soft window light. Their hands grip the handlebars and the pedals are caught in a slight motion blur, which conveys explosive effort. In the foreground, slightly out of focus on a pale oak side table, sit a small matte white scoop and a clear glass of water. Next to them is a little ceramic dish holding a few off-white capsules and a pinch of fine white powder. A folded linen towel and a slim stopwatch rest nearby. The stopwatch face is softly legible, hinting at timed sprint intervals. The background is warm cream concrete and pale wood, with tall windows casting long diagonal shafts of golden morning light across the floor. Faint dust motes drift in the light. On the wall behind, a clean, abstract line graph is painted in muted terracotta and deep teal. It shows one line rising in steps like five sprint bouts and another line gently falling, a subtle visual nod to power up and lactate down. The graph is minimal and stylized, with no readable numbers or text. The color palette is earthy and modern: sage green, terracotta, warm cream, soft charcoal, and touches of natural wood. The lighting is soft and directional with gentle highlights and natural shadows. The overall look is calm, refined, and contemporary, like a premium wellness and sports science magazine cover. The composition follows the rule of thirds, with the cyclist on the right and open negative space on the left for a headline. The image is crisp, grainy in a subtle film-like way, and free of any futuristic or sci-fi elements.
science research

Bentuk Carnitine Iki Ngluwihake Daya Sprint nganti 15 % lan Ngurangi Laktat

BY DR. GYMBRO ·

Panliten crossover taun 2009 nemokaké yèn dosis tunggal 4,5 g glycine propionyl‑L‑carnitine (GPLC) bisa nambah daya puncak lan rata‑rata sprint antara 2,6 % nganti 15 % sajrone lima sprint tanpa turu, lan ngurangi kadar laktat getih nganti 16,2 % sawisé 14 menit. Nanging angka 15 % kuwi mung puncak rentang, dudu rata‑rata, lan panliten iki mung ngalibataké 24 wong lanang ing siji laboratorium.
A wide, landscape editorial photograph with a modern wellness-journal feel. In the foreground, a clear glass vial of pale amber liquid sits on a matte white stone surface, with a small dropper beside it and a few droplets catching soft light. A slim brushed-steel measuring spoon and a minimalist notebook with handwritten dose calculations in pencil rest nearby. The numbers are blurred and unreadable. In the softly blurred background, a bright, airy modern gym with large windows and morning light. A fit man in his thirties, in a charcoal athletic shirt, is mid-stride on a treadmill in profile, with a gentle sheen of sweat and a focused expression. Behind him, a wooden plyo box, a kettlebell, and a rope are arranged neatly, suggesting functional training. The palette is calm and refined: warm cream, soft sage green, muted terracotta, and touches of deep navy. Natural golden side-light makes long, gentle shadows. Shallow depth of field with a crisp foreground and creamy bokeh. Clean composition with negative space on the left third for a title overlay. Premium magazine photography, subtle film grain, realistic textures, no text or logos, and no futuristic or digital elements.
nutrition

HMB Ngluhuraké Kebugaran Kardio, Dudu Kakuatan, Ing Uji Coba Anyar 2026

BY DR. GYMBRO ·

HMB biyasané didol minangka suplemen kanggo ngreksa otot lan nambah kakuatan, nanging uji coba triple‑blind paling anyar mratelakaké hasil sing béda. Ing antarané 90 priya, dosis HMB cair sing diatur miturut massa bebas lemak (90 mg/kg FFM saben dina) bebarengan karo latihan fungsional intensitas tinggi nambah VO₂max lan ambang‑ambang kardiorespirasi liyané luwih apik tinimbang plasebo. Pengaruh paling cetha katon ing priya sing wis terlatih, déné kekuatan otot sikil isometrik ora owah. Ing ngisor iki cara ngétung dosisé, perbandingan karo dosis standar 3 g, lan sapa sing bisa entuk manfaat.

This page is available in

English العربيةবাংলাČeštinaDeutschEspañolفارسیFrançaisHausaहिन्दीHrvatskiBahasa IndonesiaItaliano日本語Basa Jawa한국어NederlandsਪੰਜਾਬੀPolskiPortuguêsRomânăРусскийSrpskiTürkçeУкраїнськаTiếng Việt中文